Re: please consider emacs-unicode for pervasive changes

[Richard Stallman]

    They mostly haven't been touched, and don't need to be.  You can't
    generally change them to Unicode (as opposed to utf-8-emacs) because
    they may contain non-Unicode characters.

What non-Unicode characters do you mean?  In the Unicode version, the
only non-Unicode characters Emacs supports will be Han characters.
Why would we want to have non-Han non-Unicode characters in these files
when Emacs does not support them?

If you think there is a reason to do so, would you please explain what
it is, why, and which characters we would use?  Please give one
concrete example to nail things down.

    > Is this an inevitable consequence of the unification done by
    > Unicode?

    No.  The fact that you can't prevent it for i/o of general iso-2022 is
    a missing feature, as handa said.

Handa, I have not seen where you said that.  Would you please address
this question?

      I thought it was a design feature you insisted on that the
    character space is much bigger than Unicode for that sort of reason.

I am not sure what this missing feature would be, and I don't know
what "that sort of reason" refers to.  The reason the character set is
bigger than Unicode is to avoid unifying Han characters.